Minimally Invasive Pericardiotomy as a New Treatment for Heart Failure With Preserved Ejection Fraction - The PeriCut Catheter System Early Feasibility Study (REIMAGINE HFpEF)

Inclusion Criteria * Age ≥ 30 years * Symptoms of severe dyspnea (NYHA Class III-IV) without evidence of a non-cardiac or ischemic explanation for dyspnea * Ejection fraction of ≥50%, determined on most recent imaging study within the preceding 2 years (730 days), with no change in clinical status, suggesting potential for deterioration in systolic function. * Documentation history of at least one of the following: Any previous hospitalization for HF (\>30 days prior to enrollment) with radiographic evidence of pulmonary congestion (pulmonary venous hypertension, vascular congestion, interst…